Polozhitelni i otrit︠s︡atelni sili v prirodata
By: Petŭr Dŭnov (Uchiteli︠a︡ Beĭnsa Duno) ; [Ivan Kirilov, Lili Borisova, redaktori]
Contributors: Kirilov, Ivan; Borisova, Lili
Publisher: Kulturna asot︠s︡iat︠s︡ii︠a︡ Beĭnsà Dunò
Published: 1997
Place of publication: Sofii︠a︡
Language: bul
Subjects: Occultism; Bi︠a︡lo bratstvo (Bulgaria)
Notes: Reissue of "Polozhitelni i otrit︠s︡atelni sili v prirodata", lectures given in 1922.

Complete in 2 v.